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1432 Ethiopia (1937 PG)
Classification: Main-belt Asteroid          SPK-ID: 2001432
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2258236278146589 3.705e-08  
a 2.381746556732363 6.1925e-09 au
q 1.843891908755989 8.7448e-08 au
i 8.271520125286406 3.6466e-06 deg
node 123.2254477965089 2.3153e-05 deg
peri 218.5780662302418 2.3893e-05 deg
M 174.4299964581408 6.7053e-06 deg
tp 2458349.980353799295
(2018-Aug-19.48035380)		 2.4662e-05 TDB
period 1342.584861477386
3.68		 5.2361e-06
1.434e-08		 d
yr
n .2681394750748601 1.0457e-09 deg/d
Q 2.919601204708738 7.5909e-09 au
   Orbit Determination Parameters
   # obs. used (total)      3425  
   data-arc span      30267 days (82.87 yr)  
   first obs. used      1937-08-01  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39877  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:31:22  

Additional Information
 Earth MOID = .84299 au 
 Jupiter MOID = 2.48932 au 
 T_jup = 3.489 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456990.5 (2014-Nov-29.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2269580368732764 3.7243e-08  
q 1.840884282892156 8.8027e-08 au
tp 2457005.722639880093
(2014-Dec-14.22263988)		 2.4415e-05 TDB
node 123.3426037912656 2.3124e-05 deg
peri 218.1607638649207 2.3847e-05 deg
i 8.277817111744096 3.6508e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      3425  
   data-arc span      30267 days (82.87 yr)  
   first obs. used      1937-08-01  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39877  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:31:22  

Additional Information
 Jupiter MOID = 2.48932 au 
 T_jup = 3.489 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.38706284914737E-15 -3.273834944628825E-15 4.362378801709638E-14 4.667316121981594E-15 -1.077144193202584E-14 -7.799668773112555E-16
q -3.273834944628825E-15 7.748808835524932E-15 -1.167846379108217E-13 -1.082376065169871E-14 2.092376307148939E-14 2.003094120619086E-15
tp 4.362378801709638E-14 -1.167846379108217E-13 5.960931145842592E-10 6.836775793266822E-13 1.534936776203376E-10 3.158617296205179E-13
node 4.667316121981594E-15 -1.082376065169871E-14 6.836775793266822E-13 5.347311659917372E-10 -5.285970411852878E-10 2.332018247410266E-11
peri -1.077144193202584E-14 2.092376307148939E-14 1.534936776203376E-10 -5.285970411852878E-10 5.686842242390184E-10 -2.303498573203346E-11
i -7.799668773112555E-16 2.003094120619086E-15 3.158617296205179E-13 2.332018247410266E-11 -2.303498573203346E-11 1.332835735602136E-11

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0   n/a MPO416720  
diameter diameter 7.074 km 0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.8458 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Oey, J. (2008) Minor Planet Bull. 35, 132-135.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.769   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1432 Ethiopia (1937 PG)          Discovered 1937-Aug-01 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1937 PG = 1948 OE = 1951 KF = 1973 FQ1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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